main()
{
    int i,j,n=13;
    printf("N=");
    while (n>12)
     scanf("%d",&n);
    for (i=0; i<=n;i++)
    {
        for(j=0; j<12-i; j++) printf(" ");
        for(j=1; j<i+2; j++) printf("%6d",c(i,j));
        printf("\n");
    }
}
int c(x,y)
 int x, y;
 {
    int z;
    if((y==1)||(y==x+1)) return(1);
    z = c(x-1,y-1)+ c(x-1,y);
    return(z);
 }